Question

Derive an expression for the resultant of two Vectors added by using triangle law of Vectors. The magnitude of resultant of two Vectors is equal to the magnitude of either vector. At what angle are two Vectors inclined?​

Answer 1

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Answer 2

Answer:

given = 2 vectors

solution =

$\sqrt{A^{2} + B^2} \\X = \sqrt{X^{2} +X^2 + 2X^2COS\\\\X^2= 2X^2 + X^2COS\\\\2X^2COS = -X^2\\COS = 1 / 2\\COS= cos 120$

the angle between 2 vectors is 120° they will inclined at angle 120°